Home / 65,816.30-90,827.28-39,967.52

Finding the Fourth Proportional to 65,816.30, 90,827.28 and 39,967.52

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Solution

The fourth proportional to 65,816.30, 90,827.28 and 39,967.52 is: 55,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,816.30 : 90,827.28 = 39,967.52 : x
  2. Step 2: Convert to fraction form
    65,816.30/90,827.28 = 39,967.52/x
  3. Step 3: Cross multiply
    65,816.30x = 90,827.28 × 39,967.52
  4. Step 4: Simplify right side
    65,816.30x = 3,630,141,129.95
  5. Step 5: Solve for x
    x = 3,630,141,129.95/65,816.30
  6. Step 6: Final answer
    x = 55,155.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.